Google does not arbitrarily filter search results. They filter search results in ways that makes them the most money. It's bad for business for them to simply remove search results because "they don't like you." Such a policy be bad for their own business, as it would hurt their search results, giving an excellent opportunity for competitors to claim a portion of their vast market share. Obviously there are complications to this, as Google does filter results in a way to promote their own business activities. But again, this is hardly arbitrary: they do so because they think it will make them more money.
ARE YOU SURE?